We ought to be able to persuade on opposite sides of a question; as also we ought in the case of arguing by syllogism: not that we should practice both, for it is not right to persuade to what is bad; but in order that the bearing of the case may not escape us, and that when another makes an unfair use of these reasonings, we may be able to solve them.
When we asked pooh what the opposite of an introduction was, he said "the what of a what?" which didn't help us as much as we had hoped, but luckily owl kept his head and told us that the opposite of an introduction, my dear pooh, was a contradiction; and, as he is very good at long words, i am sure that that's what it is.
The rich and powerful countries are trying to wreck as much as possible. You know, go off the cliff as soon as you can. Extract every drop of hydrocarbons off the ground and destroy the environment. At the opposite extreme are countries like bolivia and ecuador, indigenous people around the world, and first nations in canada and tribal people in india, campesinos in colombia... They're trying to save the commons.